If I had anything to say about it, I'd much prefer Danicole to Ericole. Since I don't believe Eric would ever totally forgive and FORGET Nicole's trickery, he would probably use a reminder of her past wrongdoings as a weapon whenever there was the slightest conflict between them.
Yes, there does seem something very sweet cooking between Nicole and Daniel. And we have seen whatever people call "chemistry" created by the couple for quite some time. However, if they do get together romantically. I think I'll always have doubts about whether that would last any longer than Dr. Dan's many former bed-mates. He DOES seem to prefer a love-'em-and-leave-'em MO.(I think it's even possible for him to succumb to the arguable charms of even Kristen or Eve.)